EP 3306919 A1 20180411 - PROJECTION TERMINAL KEYSTONE CORRECTION METHOD AND DEVICE, AND PROJECTION TERMINAL AND STORAGE MEDIUM
Title (en)
PROJECTION TERMINAL KEYSTONE CORRECTION METHOD AND DEVICE, AND PROJECTION TERMINAL AND STORAGE MEDIUM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR TRAPEZKORREKTUR BEI EINEM PROJEKTIONSENDGERÄT SOWIE PROJEKTIONSENDGERÄT UND SPEICHERMEDIUM
Title (fr)
PROCÉDÉ ET DISPOSITIF DE CORRECTION DE TRAPÈZE DE TERMINAL DE PROJECTION, ET TERMINAL DE PROJECTION ET SUPPORT DE STOCKAGE
Publication
Application
Priority
- CN 201510391656 A 20150703
- CN 2015088299 W 20150827
Abstract (en)
Embodiments of the present invention disclose a keystone correction method for a projection terminal including: when an included angle between a projection centerline of the projection terminal and a horizontal plane is greater than a set acute angle, determining a direction of a projection plane according to a size relationship between a distance of the projection terminal to the projection plane along a first projection line and a distance of the projection terminal to the projection plane along a second projection line, the first projection line and the second projection line having different projection angles; and performing a keystone correction for the projection terminal according to the direction of the projection plane. Embodiments of the present invention further disclose a keystone correction device for a projection terminal, a projection terminal and a computer storage medium.
IPC 8 full level
H04N 9/31 (2006.01)
CPC (source: EP US)
H04N 9/31 (2013.01 - EP US); H04N 9/3152 (2013.01 - US); H04N 9/3185 (2013.01 - EP US); H04N 9/3194 (2013.01 - EP US); H04N 5/74 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3306919 A1 20180411; EP 3306919 A4 20180718; EP 3306919 B1 20200930; CN 106331666 A 20170111; CN 106331666 B 20200207; US 10645354 B2 20200505; US 2018192015 A1 20180705; WO 2017004871 A1 20170112
DOCDB simple family (application)
EP 15897527 A 20150827; CN 2015088299 W 20150827; CN 201510391656 A 20150703; US 201515739786 A 20150827